Status:

RECRUITING

A Study of GNTI-122 in Adults Recently Diagnosed With T1D

Lead Sponsor:

GentiBio, Inc

Conditions:

Type 1 Diabetes (T1D)

Type 1 Diabetes Mellitus

Eligibility:

All Genders

18-45 years

Phase:

PHASE1

Brief Summary

This is a 78-week single arm, multi-center, Phase 1 study to evaluate the safety, tolerability, cellular kinetics, and biomarker changes in C-peptide over time of GNTI-122, an investigational cell the...

Detailed Description

This is a 78-week single arm, multi center, Phase 1 study to evaluate the safety, tolerability, cellular kinetics, and biomarker changes in C-peptide over time of GNTI-122 in adult participants with r...

Eligibility Criteria

Inclusion

  • Male and female participants aged ≥18 to ≤45 years with recently diagnosed (within 120 days of Screening) T1D according to American Diabetes Association criteria.
  • Participant has residual β-cell function during Screening, defined as random C-peptide ≥ 0.2 nmol/L.
  • Positive for at least one T1D-associated autoantibody.
  • Able and willing to provide written, informed consent as approved by the IRB.
  • Is confirmed positive for the HLA-DRB1\*04:01 allele.
  • Has adequate vascular access to undergo leukapheresis with no known contraindications.
  • 8\. Female participants of childbearing potential must have a negative serum pregnancy test at Screening, must be not lactating, and must agree to protocol-specified contraception.
  • 9\. Male participants of childbearing potential must agree to protocol specified contraception.
  • 10\. Other than T1D, participant is in good general health.

Exclusion

  • Type 2 diabetes.
  • Experienced DKA within 4 weeks prior to or during Screening.
  • Unwilling or unable to comply with study procedures or schedule.
  • Chronic or uncontrolled medical condition.
  • Has another active or autoimmune or inflammatory disease with the exception of well-controlled Hashimoto's thyroiditis, celiac disease, or vitiligo.
  • Participation in another clinical study or active follow-up in a prior study.

Key Trial Info

Start Date :

September 3 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

February 1 2028

Estimated Enrollment :

16 Patients enrolled

Trial Details

Trial ID

NCT06919354

Start Date

September 3 2025

End Date

February 1 2028

Last Update

December 11 2025

Active Locations (9)

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Page 1 of 3 (9 locations)

1

City of Hope Medical Center

Duarte, California, United States, 91010

2

University of California - San Diego

San Diego, California, United States, 92093-0990

3

University of California - San Francisco

San Francisco, California, United States, 94158

4

University of Florida - Gainesville

Gainesville, Florida, United States, 32610